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He crossed to the small guard station and foraged through its drawers until he found the first-aid box. He threw bottles over his shoulder and they shattered on the ground behind him. When he came to the procaine hydrochloride vial, he stopped. The Maingate physician had insisted it be present in case emergency oral surgery were ever necessary for the guards; in addition to being a contained security unit, the Tower had to be a self-sufficient medical station. Allander withdrew a needle from the small packet and fit it gently into a plastic syringe. He punched the needle through the rubber top of the vial and withdrew some of the liquid, then cleared the air from the syringe. A few drops squirted through, onto the floor. Taking a deep breath, Allander inserted the needle into the tip of the ring finger on his left hand. He waited for the numbness to spread and settle. After a few minutes, he removed a scalpel from its sterile package and dipped it in the container of alcohol. Then he made a neat incision, cutting diagonally through his fingerprint. Since the anesthetic had not fully taken effect, he felt a painful tingling in the pad of his finger, but feeling suddenly rushed for time, he continued. Using tweezers, he pried underneath the skin, grimacing as he saw his flesh rise along the straight line of the cut. The blood came and washed over the end of the tweezers until it obscured his view. Once, he felt the tweezers close on something hard and he pulled gently, but when the tweezers emerged from the bloody gash, they held only fleshy material that looked like gristle. Allander hadn’t anticipated that numbing the finger would have made it difficult for him to distinguish the location sensor from his own senseless tissue. Beginning to lose patience, he pressed the tweezers in until they hit the bone. He applied too much pressure and they slid around the side of his finger next to his nail, pulling the flesh around and stretching the cut open. He heard a soft, metallic clink as the tweezers struck something distinctly alien, and he bit his lip in a mixture of pain and delight. Finally, working the tweezers around the metal, he withdrew the sensor, which was the size of a large pea. The flesh around the cut strained and whitened at the edges as he pulled the bloody orb through. After pressing gauze to his wound, Allander wrapped it with medical tape, bandaging it thoroughly. Then he used the tape to affix the location sensor to the side of the Hole. It was close enough to its assigned location that the difference in position would not be detected from the mainland.
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